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https://github.com/facebook/rocksdb.git
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036bbab6f7
Summary: We introduced a new Comparator for timestamp in user keys. In the sst_dump_tool by default we use BytewiseComparator to read sst files. This change allows us to read comparator_name from table properties in meta data block and use it to read. Pull Request resolved: https://github.com/facebook/rocksdb/pull/9491 Test Plan: added unittests for new functionality. make check   Reviewed By: riversand963 Differential Revision: D33993614 Pulled By: satyajanga fbshipit-source-id: 4b5cf938e6d2cb3931d763bef5baccc900b8c536
119 lines
4 KiB
C++
119 lines
4 KiB
C++
// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
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// This source code is licensed under both the GPLv2 (found in the
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// COPYING file in the root directory) and Apache 2.0 License
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// (found in the LICENSE.Apache file in the root directory).
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//
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// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file. See the AUTHORS file for names of contributors.
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#include "db/compaction/compaction.h"
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#include "db/db_test_util.h"
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#include "port/stack_trace.h"
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#include "test_util/testutil.h"
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namespace ROCKSDB_NAMESPACE {
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namespace {
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std::string Key1(uint64_t key) {
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std::string ret;
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PutFixed64(&ret, key);
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std::reverse(ret.begin(), ret.end());
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return ret;
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}
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std::string Timestamp(uint64_t ts) {
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std::string ret;
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PutFixed64(&ret, ts);
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return ret;
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}
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} // anonymous namespace
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class TimestampCompatibleCompactionTest : public DBTestBase {
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public:
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TimestampCompatibleCompactionTest()
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: DBTestBase("ts_compatible_compaction_test", /*env_do_fsync=*/true) {}
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std::string Get(const std::string& key, uint64_t ts) {
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ReadOptions read_opts;
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std::string ts_str = Timestamp(ts);
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Slice ts_slice = ts_str;
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read_opts.timestamp = &ts_slice;
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std::string value;
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Status s = db_->Get(read_opts, key, &value);
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if (s.IsNotFound()) {
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value.assign("NOT_FOUND");
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} else if (!s.ok()) {
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value.assign(s.ToString());
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}
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return value;
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}
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};
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TEST_F(TimestampCompatibleCompactionTest, UserKeyCrossFileBoundary) {
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Options options = CurrentOptions();
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options.env = env_;
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options.compaction_style = kCompactionStyleLevel;
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options.comparator = test::BytewiseComparatorWithU64TsWrapper();
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options.level0_file_num_compaction_trigger = 3;
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constexpr size_t kNumKeysPerFile = 101;
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options.memtable_factory.reset(
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test::NewSpecialSkipListFactory(kNumKeysPerFile));
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DestroyAndReopen(options);
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SyncPoint::GetInstance()->DisableProcessing();
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SyncPoint::GetInstance()->ClearAllCallBacks();
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SyncPoint::GetInstance()->SetCallBack(
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"LevelCompactionPicker::PickCompaction:Return", [&](void* arg) {
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const auto* compaction = reinterpret_cast<Compaction*>(arg);
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ASSERT_NE(nullptr, compaction);
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ASSERT_EQ(0, compaction->start_level());
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ASSERT_EQ(1, compaction->num_input_levels());
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// Check that all 3 L0 ssts are picked for level compaction.
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ASSERT_EQ(3, compaction->num_input_files(0));
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});
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SyncPoint::GetInstance()->EnableProcessing();
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// Write a L0 with keys 0, 1, ..., 99 with ts from 100 to 199.
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uint64_t ts = 100;
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uint64_t key = 0;
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WriteOptions write_opts;
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for (; key < kNumKeysPerFile - 1; ++key, ++ts) {
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std::string ts_str = Timestamp(ts);
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ASSERT_OK(
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db_->Put(write_opts, Key1(key), ts_str, "foo_" + std::to_string(key)));
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}
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// Write another L0 with keys 99 with newer ts.
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ASSERT_OK(Flush());
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uint64_t saved_read_ts1 = ts++;
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key = 99;
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for (int i = 0; i < 4; ++i, ++ts) {
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std::string ts_str = Timestamp(ts);
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ASSERT_OK(
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db_->Put(write_opts, Key1(key), ts_str, "bar_" + std::to_string(key)));
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}
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ASSERT_OK(Flush());
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uint64_t saved_read_ts2 = ts++;
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// Write another L0 with keys 99, 100, 101, ..., 150
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for (; key <= 150; ++key, ++ts) {
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std::string ts_str = Timestamp(ts);
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ASSERT_OK(
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db_->Put(write_opts, Key1(key), ts_str, "foo1_" + std::to_string(key)));
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}
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ASSERT_OK(Flush());
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// Wait for compaction to finish
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ASSERT_OK(dbfull()->TEST_WaitForCompact());
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uint64_t read_ts = ts;
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ASSERT_EQ("foo_99", Get(Key1(99), saved_read_ts1));
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ASSERT_EQ("bar_99", Get(Key1(99), saved_read_ts2));
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ASSERT_EQ("foo1_99", Get(Key1(99), read_ts));
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SyncPoint::GetInstance()->ClearAllCallBacks();
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SyncPoint::GetInstance()->DisableProcessing();
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}
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} // namespace ROCKSDB_NAMESPACE
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int main(int argc, char** argv) {
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ROCKSDB_NAMESPACE::port::InstallStackTraceHandler();
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::testing::InitGoogleTest(&argc, argv);
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return RUN_ALL_TESTS();
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}
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